Daft-Freak/SDL-emscripten — pull request #25 by urkle (2014-11-11 20:19:31+00:00)
Title: allow overriding the keyboard bind element via the SDL hint system

This allows overriding the keyboard bind element via the SDL Hint system.. e.g. in a pre-run you simply do
```javascript
Module['preRun'].push(function() {
ENV.SDL_EMSCRIPTEN_KEYBOARD_ELEMENT = "#document";
});
```